Physics
The splitting of different colours of light in a prism is :

Diffraction of light
Disperson of light
Refraction of light
Reflection of light

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Physics
To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor

Should be made of a good conductor like copper with sharp-pointed edges
Can be of any shape
Should be in the form of a vertical rod
Should be made of a good conductor but can be of any shape

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Physics
Air moves from the region where the air ________

Pressure is low to the region where the pressure is high
Pressure is high to the region where the pressure is low
Humidity is low to the region where the humidity is high
Humidity is high to the region where the humidity is low

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